EP4193130A1 - Feldgerät der automatisierungstechnik - Google Patents
Feldgerät der automatisierungstechnikInfo
- Publication number
- EP4193130A1 EP4193130A1 EP21745795.1A EP21745795A EP4193130A1 EP 4193130 A1 EP4193130 A1 EP 4193130A1 EP 21745795 A EP21745795 A EP 21745795A EP 4193130 A1 EP4193130 A1 EP 4193130A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- field device
- component
- housing
- additive
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/14—Casings, e.g. of special material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0091—Complexes with metal-heteroatom-bonds
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
- G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
- G01F1/588—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters combined constructions of electrodes, coils or magnetic circuits, accessories therefor
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
- G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
Definitions
- the invention relates to a field device used in automation technology, a method for producing a housing for the field device used in automation technology, and the use of an additive to improve adhesion.
- field devices are often used, which are used to record and/or influence process variables.
- Process variables are recorded by sensors that are integrated, for example, in level meters, flow meters, pressure and temperature meters, pH redox potential meters, conductivity meters, etc., which record the corresponding process variables level, flow rate, pressure, temperature, pH value or conductivity.
- Actuators such as valves or pumps, which can be used to change the flow of a liquid in a pipeline section or the fill level in a container, are used to influence process variables.
- field devices are also understood to mean remote I/Os, radio adapters or, in general, electronic measurement components that are arranged at the field level.
- a field device is in particular selected from a group consisting of flow meters, level meters, pressure meters, temperature meters, limit level meters and/or analysis meters.
- Flow measuring devices are in particular Coriolis, ultrasonic, vortex, thermal and/or magnetically inductive flow measuring devices.
- Level measuring devices are, in particular, microwave level measuring devices, ultrasonic level measuring devices, time-domain reflectometric level measuring devices, radiometric level measuring devices, capacitive level measuring devices, inductive level measuring devices and/or temperature-sensitive level measuring devices.
- Pressure measuring devices are in particular absolute, relative or differential pressure devices.
- Temperature measuring devices are, in particular, measuring devices with thermocouples and/or temperature-dependent resistors.
- Point level measuring devices are in particular vibronic point level measuring devices, ultrasonic point level measuring devices and/or capacitive point level measuring devices.
- Analysis measuring devices are in particular pH sensors, conductivity sensors, oxygen and active oxygen sensors, (spectro)photometric sensors and/or ion-selective electrodes.
- Field devices in automation technology are known, most of which have a housing to stabilize and protect the electronic components and/or the measuring components from the environment.
- Field devices can be subject to particularly high temperature fluctuations due to the wide range of applications. This leads to material expansion and contraction within the housing, which can lead to incorrect measurements or the failure of electronic components.
- a field device is known from DE 10 2012 110 665 A1, which has a plastic housing formed by two plastic molded parts welded to one another. Such a construction still allows access to individual measuring components of the flow meter. However, it is disadvantageous with regard to fixing the position of the individual connecting cables.
- DE 10 2014 105 569 B3 discloses a field device with a housing which is at least partially made of a thermoplastic material and thus envelops the partial measuring tube section and at least one further measuring component attached thereto with a precise fit.
- this solution is inexpensive, since the entire housing comprises only a single heat-shrinkable tube, which ensures fixation and stabilization, it is disadvantageous that the housing cannot be reused after it has been shrunk on.
- DE 10 347 878 A1 discloses a field device which has a housing body which is formed from a casting material and consists of an epoxy resin or polyurethane. To apply the casting material, the measuring tube is covered with a casting mold, for example made of sheet metal, which is then filled with the casting material. After the encapsulation material has hardened, the encapsulation mold is removed, and in particular it can also be reused.
- a disadvantage of this invention is that there is insufficient adhesion between the housing body and the measuring tube to meet the requirements of the IP68 protection class.
- the object of the invention is to provide a field device for automation technology with improved adhesion between the container and the housing body.
- the invention is based on the object of providing a method for producing the field device for automation technology, with which improved adhesion between the container and the housing body is achieved.
- the objects are achieved by the field device according to claim 1, the method for production according to claim 9 and the use of a titanate and/or zirconate according to claim 15.
- a container for receiving and/or guiding a medium the container having an outer surface
- the housing for protecting the measuring device and the electronic components, the housing having a housing body, the measuring device and the electronic components being arranged in the housing, the housing body being arranged on the outer surface of the container, the housing body at least partially having a composite material , wherein the measuring device and the electronic components are at least partially surrounded by the composite material, the composite material having a polymer matrix, the composite material having an additive, the additive comprising at least one chemical compound having an oxidized transition metal, preferably of the 4th subgroup.
- the technical advantage of this embodiment of the invention is that the measuring component is very well and permanently fixed in place and at the same time is protected from external influences such as moisture, dirt, vibrations, etc., with all possible existing cavities between the measuring tube and the casting mold being filled .
- the production can be carried out very cost-effectively.
- the additive in the polymer matrix creates a chemical bond between the housing body and the surface of the container.
- the additive has catalytic properties, so that a curing temperature of the polymer matrix can be chosen lower. This leads to a lower load on the container, the measuring device and the electronic components.
- the measuring device consists of the components required to determine the process variables.
- a field device includes at least one measuring device.
- the measuring device of a magneto-inductive flowmeter comprises a device for generating a magnetic field and a device for measuring an induced measuring voltage, i.e. measuring electrodes with the associated connections and cables.
- a medium monitoring electrode is also used to monitor another process variable, the level.
- Magneto-inductive flowmeters are known that have additional measuring devices such as temperature sensors or pressure transducers.
- the measuring device of an ultrasonic flow meter comprises at least one ultrasonic transmitter and one ultrasonic receiver.
- a magneto-inductive flowmeter in addition to embedding the device for generating the magnetic field, it is also possible to fix the corresponding electrical supply lines and the electronic components, such as operating, measuring and/or evaluation circuits, using the potting material.
- the supply lines are then kept vibration-free without much effort, which increases the measurement accuracy and interference immunity.
- One embodiment provides that the outer surface of the container comprises a polyolefin.
- Polyolefins are polymers made from saturated hydrocarbons, especially alkenes such as ethylene, propylene, 1-butene or isobutene, by chain polymerisation.
- the best-known representatives of this group of plastics are polyethylene (PE), polypropylene (PP) and polymethylpentene (PMP).
- Industrially produced and used polyolefins are polyisobutylene (PIB) and polybutylene (PB, polybutene-1).
- High-density polyethylene abbreviated as HDPE or PE-HD
- Polypropylene (PP), especially isotactic polypropylene, and polyethylene (PE) are used in medical and food packaging, fibers and pipes.
- the container is a polyethylene tube (PE tube).
- PE tube polyethylene tube
- Polyethylene pipes are pipes made of polyethylene (PE) that are mainly used in piping systems for gas, water supply and sewage disposal be used. In addition, they are used in various industrial sectors. The most important properties are corrosion resistance, resistance to various chemicals, crack resistance, drinking water approval, light weight and simple connection techniques. Pipelines made of cross-linked polyethylene (PEX) or polyethylene with increased temperature resistance (PE-RT) are used, which are designed for continuous operation with water at a pressure of 10 bar and a fluid temperature of +70 °C. Multi-layer composite pipes made of PEX and aluminum are also in use and, like PEX or PE-RT pipes, fall under the scope of protection.
- PEX cross-linked polyethylene
- PE-RT polyethylene with increased temperature resistance
- Multi-layer composite pipes made of PEX and aluminum are also in use and, like PEX or PE-RT pipes, fall under the scope of protection.
- the polymer matrix has at least a first component and a second component, the first component having an isocyanate, the second component having a polyol.
- the combination of the additive with a polyurethane leads to a favorable composite material which is ideal as a housing body or as a filler to stabilize the measuring device and is also suitable for automated filling processes.
- the combination of polyurethane and additive results in a cold-casting system that hardens without, or at least only with little, thermal treatment.
- transition metal is selected from the group that includes titanium or zirconium.
- the chemical compound has a titanate and/or a zirconate.
- titanates The salts or esters of titanic acids (H x Ti y O z , practically the various hydrates of titanium dioxide) are referred to as titanates. These are preferably present in particular in an organic complex.
- a zirconate is a zirconium comprising an oxyanion. According to the invention, this is also preferably present in a particularly organic complex.
- the chemical compound has an isopropyl and/or a tri(dioctyl) phosphate chain.
- isopropyl triisostearoyl titanate isopropyl tri(dioctyl) phosphate titanate, isopropyl tri(N-ethylenediamino)ethyl titanate and/or neopentyl(diallyl)oxytri(dioctyl) has proven particularly advantageous phosphate zirconate, whose structural formulas can be represented as follows:
- Isopropyl tri(dioctyl)phosphate titanate isopropyl tri(N-ethylenediamino)ethyl titanate
- the field device is a flow meter, in particular a magneto-inductive flow meter.
- the method according to the invention for producing a housing for a field device comprises the method steps: - Incorporation of an additive into a first component or a second component, preferably into the second component of a potting material, the first component having an isocyanate, the second component having a polyol, the additive having at least one oxidized transition metal, preferably the 4th chemical compound comprising subgroup;
- an additive with a chemical compound comprising an oxidized transition metal leads to chemical bonds between the polymer matrix and the outer surface of the container and thus to better adhesion. Furthermore, the additive promotes the reaction between the first component and the second component, so that heating of the composite material when forming the housing body can be partially or even completely dispensed with.
- the composite material thus forms a so-called cold-casting system.
- the curing temperature is less than 50°C, in particular less than 40°C and preferably less than 30°C.
- the housing body can be processed at lower temperatures.
- the further processing of the automation technology field device can be started earlier, since the final curing is also subsequently achieved at room temperature.
- the additive is present in the second component in a weight ratio of at least 0.3%, in particular at most 1% and preferably 0.4 to 0.5%.
- One embodiment provides that the outer surface of the container is oxidized at a position provided for the housing.
- the PE pipes Before further processing - e.g. welding with a second PE pipe - the PE pipes are usually treated with appropriate pretreatment methods such as cleaning, (sand) blasting, flame treatment and/or plasma coating with subsequent primers to ensure mechanical adhesion.
- a so-called "oxide layer" of the PE pipe must be peeled off, as otherwise adequate adhesion cannot be guaranteed.
- This is extremely disadvantageous or even a hindrance for mass production of field devices or for curved outer surfaces of the container.
- the use of the above additive eliminates the need to remove the oxide layer. If the oxide layer is not removed, the outer surface therefore remains oxidized at a position intended for the housing.
- transition metal is selected from the group that includes titanium or zirconium.
- Titanium or zirconium in the additive have particularly good catalytic properties and promote or initiate a chemical reaction between the outer surface of the container and the polymer matrix. It could be shown that the chemical reaction takes place even with oxidized PE pipes.
- the chemical compound has a titanate and/or a zirconate and/or the chemical compound has an isopropyl and/or a tri(dioctyl) phosphate chain.
- an additive containing a titanate and/or zirconate is used to improve the adhesion of a housing body formed from a polyurethane to a container.
- the housing body has a Shore hardness of at least 60D, in particular at least 70D and preferably at least 85D (according to ISO 868 (as of 2003)).
- the Shore hardness describes the mechanical resistance that the potting material opposes to mechanical penetration by another body and depends only to a limited extent on the strength of the body.
- the Shore hardness is a material parameter for Elastomers and plastics and is specified in the standards DIN EN ISO 868, DIN ISO 7619-1 and ASTM D2240-00 (as of 2018).
- the housing (7) meets the requirements of the IP68 protection class (as of 2020).
- the first digit means that the housing is dust-tight and is therefore protected against the ingress of foreign bodies.
- the second digit means that the inside of the housing is protected against the ingress of water despite permanent submersion.
- the IP protection class indicates the resistance of the housing of a field device against the ingress of foreign bodies and water.
- the two numbers of the protection class have the following meaning. The first number indicates how resistant the housing is to the ingress of foreign objects. The second number indicates the tightness against water.
- a housing that meets the requirements of the IP68 protection class (as of 2020) is therefore dust-tight and protected against permanent immersion in water.
- the heat of reaction released by the reaction of the first with the second component leads to a temperature increase of the composite material at an interface to the measuring component or to the container of less than 100°C, in particular less than 70°C and preferably less than 30°C.
- the heat of reaction that is released does not damage the electronic components and/or the measuring components. This is particularly important if plastic parts, for example in the form of insulation, are installed in the electronic components or in the measuring components, or if heat-sensitive electronic components are installed. Matching the two components and the heat released during the chemical reaction is therefore essential.
- the environmental conditions can be controlled in such a way that the heat of reaction released is continuously dissipated and the composite material does not exceed a temperature increase or temperature change of 100°, 70° or 30°C. This is done, for example, by allowing the reaction to take place in a cooled down environment or by dissipating the heat released with a flowing medium such as nitrogen.
- the heat of reaction can already be influenced by matching the first and second components.
- a first component with an isocyanate and a second component with a polyol are selected. In that case the heat of reaction released is so low that the temperature rise remains below the critical temperature change mentioned above.
- the polyurethanes used to manufacture the housing are mostly elastomeric plastics, which are produced on the basis of a liquid multi-component system formed from reactive components immediately before processing Reaction time is allowed to harden.
- polyurethanes are produced by the polyaddition process from di- and poly-isocyanates with polyhydric alcohols.
- prepolymers made up of aliphatic and/or aromatic ether groups and glycol and isocyanate groups, which can react with the polyhydric alcohol supplied can be used as components.
- transmitters or electronic displays are connected to the housing via an adapter. Therefore, respective adapters must be manufactured and provided for measuring tubes with different tube diameters.
- the encapsulation mold is shaped in such a way that the adapter, in particular the connections, are also encapsulated to fit.
- the encapsulation mold also takes on the shape of the adapter in places, which means that an adapter is also formed after the encapsulation. Its shape depends on the shape of the casting mold and can therefore be adapted to the respective measuring tubes.
- conventional housing shells for example those known from DE 10 2012 110 665 A1
- the inside of the casting mold has an anti-adhesive surface, or the casting mold consists of an anti-adhesive material.
- a coating with a grease or Teflon is particularly advantageous.
- the casting mold is usually produced using a die-casting process. According to the invention, the casting mold is produced using a 3D printing process.
- the casing can be made, for example, from sheet metal or plastic, in particular reusable or designed as a “lost mold”.
- the casting mold has an inlet so that the foaming casting material can be introduced into the casting mold in a simplified manner.
- Components for forming a composite material from a potting material are typically not in a homogenized state.
- the respective component must be homogeneous in the Potting material to be distributed. Only then can the formation of cavities and detachment from the outer surface of the container be avoided.
- FIG. 1 shows a cross-sectional representation of a magnetic-inductive flowmeter according to the prior art
- FIG. 2 shows a perspective view of an embodiment of the field device used in automation technology
- FIG. 3 shows a side view of a further embodiment of the field device used in automation technology.
- An example of a field device in automation technology is a magneto-inductive flow meter 7 (see FIG. 1).
- the structure and the measuring principle of the magneto-inductive flow measuring device 7 are known in principle.
- a flowable medium which has electrical conductivity is passed through a measuring tube 8 .
- a device 10 for generating a magnetic field is attached to the measuring tube 8 in such a way that the magnetic field lines are oriented perpendicular to a longitudinal direction defined by the axis of the measuring tube.
- a saddle coil or a pole shoe with an attached coil is preferably suitable as the device 10 for generating the magnetic field.
- the device 10 for generating the magnetic field can have field guide bodies.
- a potential distribution occurs in the measuring tube 8 which is tapped off with a device 9 for measuring an induced measuring voltage, in this case with two measuring electrodes attached to the inner wall of the measuring tube 8 .
- these are arranged diametrically and form an electrode axis that runs perpendicular to an axis of symmetry of the magnetic field lines and the longitudinal axis of the tube. Based on the measured induced measuring voltage, taking into account the magnetic flux density, the flow rate and, taking into account the pipe cross-sectional area, the volume flow of the medium can be determined.
- the inner surface of the carrier tube is lined with an insulating material or a plastic liner.
- the magnetic field built up by an electromagnet for example, is generated by means of an operating circuit 11 by means of a clocked direct current of alternating polarity. This ensures a stable zero point and makes the measurement insensitive to influences from multiphase substances, inhomogeneities in the liquid or low conductivity.
- a measurement and / or evaluation circuit 11 reads the measurement electrodes and determines the flow velocity and/or the calculated volume flow of the medium. In the cross section of the magneto-inductive flowmeter shown in FIG. 1, the measuring electrodes are in direct contact with the medium.
- the coupling can also be capacitive.
- the measuring device and the electronic components of the magnetic-inductive flowmeter are usually protected from external influences by a housing.
- a housing body made of a liquid applied and hardened potting material serves to stabilize the measuring arrangement - in the case of device 10 for generating the magnetic field and device 9 for measuring the induced measuring voltage - and the electronic components - the operating, measuring and/or Evaluation circuit 11 - against mechanical and thermal influences.
- Fig. 2 shows a perspective view of an embodiment of an at least partially interconnected field device for automation technology 14.
- a conventional housing shell was used as the casting mold 13, which forms a cavity between the housing formwork wall and the outer surface of the container and is installed in field devices to protect the electronic components in which a Subsequent access to the interior of the housing 5 is provided. It can take any form.
- a 3D printing process is suitable for special shape requests.
- the casting mold 13 can be removed again so that it can be used to produce further housing bodies 6 .
- a transmitter embedded in the housing body ⁇ in particular in the polymer matrix, which transmits the measurement signals to a display unit.
- the polymer matrix has at least a proportion of a composite material which at least partially surrounds the measuring device and the electronic components.
- the composite material has a polymer matrix and an additive, the additive comprising at least one chemical compound having an oxidized transition metal, preferably one of the 4th subgroup.
- the additive serves to form improved adhesion between the outer surface of the container and the housing body 6 .
- the encapsulation mold is removed and the housing body 6 made of the polymer composite assumes the function of the casing. Alternatively, the casting mold 13 is not removed.
- the polymer matrix is mainly responsible for fixing the electronic components.
- the outer casing of the housing stabilizes and protects the measuring components.
- the container is a metal measuring tube with flange connections.
- FIG 3 shows a side view of a further embodiment of a magneto-inductive flow measuring device 7 with a cast adapter 16.
- the adapter 16 is cast as a separate component.
- the adapter 16 does not necessarily have to be in the form of a separate component.
- the housing body 5 or parts of the housing body can assume the shape of the adapter 16 as a result of the selection of the casting mold.
- the electrical connections 17 are also fixed in the casting mold during the casting of the casting material and cast in such a way that the contact points of the connections 17 are not cast at the same time.
- the display unit can then be connected directly to the housing body 6, so an adapter as a separate component is not necessary.
- the magnetic-inductive flow meter 7 has a container 1 , the container 1 being a measuring tube 8 with a PE tube as the carrier tube 15 .
- a housing 5 with a housing body 6 is arranged on the outer surface 2 of the measuring tube 8 .
- the housing body 6 has at least partially a composite material.
- the measuring device 3 and the electronic components 4 of the magneto-inductive flowmeter 7 are at least partially surrounded by the composite material.
- the composite material is a polymer matrix in which an additive is embedded. This serves to improve the adhesion between the housing body 6 and the outer surface 2 of the measuring tube 8 in order to meet the requirements of the IP68 protection class.
- the additive is a chemical compound containing an oxidized transition metal, preferably one from subgroup 4. Particularly good results have been obtained with an additive containing a titanate.
- the polymer matrix is a polyurethane polymer formed from a two-component system.
- FIG. 4 shows a flow chart for describing the sequence of a method for producing the field device according to the invention.
- the procedure comprises the steps A to D:
- the potting material is a two-component system, but can also contain other additives such as fillers or colorants.
- the first component includes an isocyanate and the second component includes a polyol.
- the additive is a chemical compound comprising an oxidized transition metal.
- the transition metal is titanium and/or zirconium.
- the transition metal is in the form of a titanate and/or a zirconate.
- the additive has a chemical compound with an isopropyl and/or a tri(dioctyl) phosphate chain.
- the casting mold is arranged on an outer surface of a container which is to be provided with a housing.
- the container is a polyethylene pipe, or PE pipe for short, which is primarily used in pipeline systems for gas, water supply and sewage disposal and can be provided with a drinking water approval.
- the curing temperature can be selected to be less than 50°C, in particular less than 40°C and preferably less than 30°C. Since the casting material is ready for further processing even at curing temperatures of less than 30°C after just a few hours - although the target Shore hardness has not yet been reached - the casting material can be left to cure even at room temperature.
- the additive is present in a weight ratio of at least 0.3%, more preferably at most 1% and preferably 0.4 to 0.5% in the second component.
- An additional process step in which the outer surface of the container is treated can be dispensed with.
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Electromagnetism (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020120592.9A DE102020120592A1 (de) | 2020-08-04 | 2020-08-04 | Feldgerät der Automatisierungstechnik |
| PCT/EP2021/069936 WO2022028854A1 (de) | 2020-08-04 | 2021-07-16 | Feldgerät der automatisierungstechnik |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4193130A1 true EP4193130A1 (de) | 2023-06-14 |
Family
ID=77042964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21745795.1A Pending EP4193130A1 (de) | 2020-08-04 | 2021-07-16 | Feldgerät der automatisierungstechnik |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20230296419A1 (de) |
| EP (1) | EP4193130A1 (de) |
| CN (1) | CN116075697A (de) |
| DE (1) | DE102020120592A1 (de) |
| WO (1) | WO2022028854A1 (de) |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4069192A (en) | 1976-01-30 | 1978-01-17 | Kenrich Petrochemicals, Inc. | Liquid thermosetting resins containing titanate salts |
| US4623738A (en) | 1985-04-22 | 1986-11-18 | Kenrich Petrochemicals, Inc. | Neoalkoxy organo-titanates and organo-zirconates useful as coupling and polymer processing agents |
| DE10347878A1 (de) | 2003-10-10 | 2005-05-04 | Abb Patent Gmbh | Magnetisch-induktives Messgerät für strömende Stoffe und Verfahren zu dessen Herstellung |
| DE102005030488A1 (de) * | 2005-06-30 | 2007-01-04 | Chemetall Gmbh | Verfahren zum Beschichten metallischer Oberflächen mit einer korrosionsschützenden Beschichtung |
| WO2006024068A1 (en) * | 2004-08-30 | 2006-03-09 | The University Of Queensland | Polymer composite |
| US20090011213A1 (en) * | 2007-07-03 | 2009-01-08 | General Electric Company | Recyclable Multilayer Thermoplastic Films and Methods of Making |
| DE102008007386A1 (de) * | 2008-02-01 | 2009-08-06 | Evonik Degussa Gmbh | Verfahren zur Herstellung hochreaktiver uretdiongruppenhaltiger Polyurethanzusammensetzungen im Dryblend |
| DE102008059067A1 (de) * | 2008-11-26 | 2010-06-02 | Krohne Ag | Magnetisch-induktives Durchflußmeßgerät |
| WO2010110784A1 (en) * | 2009-03-24 | 2010-09-30 | Ppg Industries Ohio, Inc. | Polyurethanes, articles and coatings prepared therefrom and methods of making the same |
| EP2682719A1 (de) * | 2012-07-05 | 2014-01-08 | Kamstrup A/S | Durchflussmesser mit ununterbrochener Innenauskleidung |
| DE102012110665A1 (de) | 2012-11-07 | 2014-05-08 | Endress + Hauser Flowtec Ag | Magnetisch-induktives Durchflussmessgerät und Anordnung |
| DE102014105569B3 (de) * | 2014-04-17 | 2015-08-20 | Endress + Hauser Flowtec Ag | Gehäuse für magnetisch induktives Durchflussmessgerät |
| EP3150649A1 (de) * | 2015-09-29 | 2017-04-05 | Henkel AG & Co. KGaA | Co-initiator-system für harzzusammensetzungen |
| US11530333B2 (en) * | 2016-12-26 | 2022-12-20 | Akzo Nobel Coatings International B.V. | Coating composition system, the preparation method, and the use thereof |
| DE102018129353A1 (de) * | 2018-11-21 | 2020-05-28 | Endress+Hauser Flowtec Ag | Feldgerät der Automatisierungstechnik und Verfahren zur Herstellung eines solchen Feldgerätes |
-
2020
- 2020-08-04 DE DE102020120592.9A patent/DE102020120592A1/de active Pending
-
2021
- 2021-07-16 CN CN202180056955.7A patent/CN116075697A/zh active Pending
- 2021-07-16 EP EP21745795.1A patent/EP4193130A1/de active Pending
- 2021-07-16 US US18/040,473 patent/US20230296419A1/en active Pending
- 2021-07-16 WO PCT/EP2021/069936 patent/WO2022028854A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US20230296419A1 (en) | 2023-09-21 |
| DE102020120592A1 (de) | 2022-02-10 |
| WO2022028854A1 (de) | 2022-02-10 |
| CN116075697A (zh) | 2023-05-05 |
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